Hot-summer humid continental
Groton, Connecticut
New London County, Connecticut · Population 9.3k · 92 ft elevation
Living in Groton
Groton has a hot-summer humid continental climate: pleasantly warm summers (July highs around 80°F) and cold winters (January lows around 23°F).
Precipitation is wet at about 39″ a year, and it gets light snow (25″ a season).
Skies are sunny (62% of possible sunshine). Summers get sticky, with about 32 muggy days a year.
Air quality is good: a median AQI of 38, with about 8 unhealthy-air days in the latest year.
Groton at a glance
- Population
- 9.3k
- Elevation
- 92 ft
- Average daily high
- 59°F13th percentile
- Average daily low
- 43°F36th percentile
- Annual precipitation
- 39″35th percentile
- Annual snowfall
- 25″64th percentile
- Sunshine hours per year
- 2,790 hrs47th percentile
- Median AQI
- 3825th percentile
- Median home value
- $279k54th percentile
- Median rent
- $1,179/mo49th percentile
- Median household income
- $70k43th percentile
- Property tax rate
- 1.57%76th percentile
- Top state income-tax rate
- 7.0%
- Sales tax (state + local)
- 6.3%
- Unemployment rate
- 6.4%
- Homes with broadband
- 86%24th percentile
- Walkability index
- 9.259th percentile
- Average commute
- 18 min
- Math proficiency (8th grade)
- 17%7th percentile
- Reading proficiency (8th grade)
- 27%
- Violent crime rate
- 116 per 100k35th percentile
- Property crime rate
- 511 per 100k
- Outdoor access
- 3131th percentile
- Public land within 10 miles
- 1%
- Public land within 30 miles
- 1%
- Mountain relief within 30 miles
- 525 ft
Climate by month
| Month | High | Low | Precipitation | Snow | Sunshine |
|---|---|---|---|---|---|
| Jan | 38°F | 23°F | 2.7″ | 5.8″ | 165 hrs |
| Feb | 40°F | 24°F | 2.2″ | 8.3″ | 173 hrs |
| Mar | 46°F | 30°F | 3.8″ | 3.9″ | 213 hrs |
| Apr | 56°F | 39°F | 3.6″ | 0.8″ | 241 hrs |
| May | 65°F | 49°F | 3.3″ | — | 268 hrs |
| Jun | 74°F | 58°F | 3.3″ | — | 295 hrs |
| Jul | 80°F | 65°F | 3.2″ | — | 333 hrs |
| Aug | 79°F | 64°F | 3.3″ | — | 312 hrs |
| Sep | 73°F | 57°F | 3.8″ | — | 262 hrs |
| Oct | 63°F | 45°F | 3.7″ | — | 206 hrs |
| Nov | 53°F | 37°F | 3.2″ | 0.5″ | 172 hrs |
| Dec | 44°F | 29°F | 3.1″ | 5.2″ | 151 hrs |
Near Groton
- New London, CT · 27k
- Long Hill, CT · 4.3k
- Waterford, CT · 3.5k
- Conning Towers-Nautilus Park, CT · 8.6k
- Old Mystic, CT · 3.2k
- Mystic, CT · 4.4k
- Niantic, CT · 3.3k
- Oxoboxo River, CT · 2.9k
Largest places in Connecticut
- Bridgeport, CT · 148k
- Stamford, CT · 136k
- New Haven, CT · 133k
- Hartford, CT · 120k
- Waterbury, CT · 114k
- Norwalk, CT · 91k
- Danbury, CT · 86k
- New Britain, CT · 73k
Sources: NOAA climate normals, NASA POWER, EPA air quality, U.S. Census Bureau, FEMA, FBI, EPA walkability and EDFacts. Methodology